pepsinae: tribe pepsini 131 



5,500 ft., Madera County, Calif., Aug. 24 to 31, 1914, J. C. Bradley 

 (Ithaca). 9, near Glacier Point, 8,000 ft., Yosemite Park, Calif., 

 July 17, 1948, Townes family (Townes). 9, Colo., C. F. Baker 

 (Washington). 9, Helena, Mont., Sept. 1, 1907 (Cambridge). 

 9, transporting Xysticus sp., Tajique, N. Mex., June 25, 1940, R. 

 H. Beamer (Evans). 9, Cascadia, Oreg., Aug. 11, 1924, H. A. 

 Scullen (Corvallis). 



This subspecies occurs in the Transition fauna. 



Subgenus Dipogon Fox 



Dipogon Fox, 1897, Proc. Acad. Nat. Sci. Philadelphia, 1897, p. 241. Type: 



Dipogon populator Fox; original designation. 

 Agriogenia Banks, 1919, Canadian Ent.. vol. 51, p. 83. Type: Pompilus {Agenia) 



brevis Cresson; original designation. 



Forewing 2.3 to 4.8 mm. long; maxillary beard of female white to 

 stramineous; second cubital cell about 1.3 as long as the third cubital 

 cell (pi. 1, fig. 10). 



There are several species of this subgenus in the southeastern 

 states, and one (brevis) ranges north to Canada. Outside of the 

 Nearctic region the subgenus is represented only in the Nootropics. 

 There are two species groups as indicated in the key and the group 

 descriptions. 



Keys to the Nearctic species of the subgenus Dipogon 



MALES 



(Two of the three subspecies of D. (Z>.) brevis are kno\%Ti in the male 

 sex. The males of the rest of the Nearctic species are unknown.) 



1. Punctures on propodeum separated by an average of 0.8 or more their diameter 



range: AUeghenian fauna 3a. brevis recalvus, new subspecies 



Punctures on propodeum separated by an average of 0.5 or less their diameter; 

 range: AUeghenian and Carolinian faunas . . . 3b. brevis brevis (Cresson) 



FEMALES 



1. Frons and top part of pronotum without appressed pubescence, only with 



sparse, suberect setae; microtrichia on forewing much larger and denser on 

 the transverse fuscous bands than between and basad of the bands, grae- 



NICHERI GROUP (SUBSPECIES OF GRAENICHERl) 2 



Frons and top part of pronotum with dense, appressed pubescence in addition 

 to sparser suberect setae; microtrichia on forewing little larger and hardly 

 denser on the transverse fuscous bands than between and basad of the 

 bands, brevis group 3 



2. Head and thorax blackish; range: New Jersey to North Carolina. 



5a. graenicheri atratus, new subspecies. 

 Head and thorax fulvous; range: Florida to Louisiana. 



5b. graenicheri graenicheri Banks 



3. Head and abdomen blackish, the thorax largely rufous ... 4. texanus Banks 

 Head, abdomen, and thorax, blackish or pale, in either case concolorous . . 4 



